package com.example.app;

import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
import android.widget.Button;
import android.widget.EditText;

public class TriangleActivity extends ActionBarActivity {

    public void ontriangleClick(View v) {
        EditText ht = (EditText) findViewById(R.id.heighttext);
        String stringheight = ht.getText().toString();
        EditText bt = (EditText) findViewById(R.id.basetext);
        String stringbase = bt.getText().toString();

        double base;
        double height;

        if (stringheight == null || stringheight.length() == 0) {

            height = 0;
        } else {

            height = Double.parseDouble(ht.getText().toString());
        }
        if (stringbase == null || stringbase.length() == 0) {

            base = 0;
        } else {

            base = Double.parseDouble(bt.getText().toString());
        }

        double area = 0.5 * base * height;

        EditText at = (EditText) findViewById(R.id.answertext);
        at.setText(area+"");


    }


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_triangle);

        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.container, new PlaceholderFragment())
                    .commit();
        }
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.triangle, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    /**
     * A placeholder fragment containing a simple view.
     */
    public static class PlaceholderFragment extends Fragment {

        public PlaceholderFragment() {
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_triangle, container, false);
            return rootView;
        }
    }

}
